Abstract: A stapler includes a base which has two connection plates on a top thereof and each connection plates include three holes. A magazine has one end pivotably connected to the hole located at the rear end of the base and staples are received in the magazine. A first arm has two grooves in the two sidewalls of the rear end thereof and is pivotably connected to the second hole of the connection plates. A second arm located between the first arm and the magazine, a rear end of the second arm movably engaged with the two grooves in the first arm. The second arm is pivotably connected to the third holes of the connection plates.

Abstract: A stapler includes a base which has two connection plates on a top thereof. A magazine assembly has one end pivotably connected to the base and an action member is pivotably connected to the two connection plates. The action member includes two first lugs and two protrusions extend from two respective outsides of the two first lugs. An action plate is connected to an end of the action member and located opposite to the first lugs. An arm is pivotably connected to the connection plates and includes two second lugs. Each second lug has a slot so that the two protrusions are movably engaged therewith. The second lugs of the arm pivot the first lugs on the action member to let the action plate on the action member to produce a large force to force a staple to penetrate the sheets.

Abstract: A routing protocol device integrated with SIP call server. The routing protocol device is provided between a first and a second network systems. The SIP call server is a Session Initiation Protocol architecture which can be coupled with plurality remote SIP agent client devices. The routing protocol device includes a first connecting port coupled with the first network system, a second connecting port coupled with the second network system and a data packet processing module for executing a routing protocol program to select the data packet transmission path of the first and second network systems and for executing at least one SIP servo program. After the remote SIP agent client devices perform SIP registry and the locations are linked, an SIP IP phone loop is formed for remote voice telecommunication.

Abstract: A network system integrated with SIP call server and SIP agent client. The network system is provided between a local device and a network for connecting with at least one remote device. The network system includes: at least one local connecting port for coupling with the local device; a remote connecting port for coupling with the network; and an SIP processing module for executing at least one SIP call server program and SIP agent client program. After the local and remote devices perform SIP registry on the SIP call server program, the local and remote devices can telecommunicate with each other by voice from a private SIP telecommunication network. The network system further includes an IP phone connecting port for coupling with at least one IP phone and a voice processing module for converting the voice signal of the IP phone into digital signal and converting the digital signal of the SIP processing module into voice signal.